Slat-moldboard.



W.'H. LEE.

SLAT MOLDBOARD.

APPLICATION FILED OCT. 28, 1914.

1,223,898., Patented Apr-(24,1917.

- IIIIIIAYIIIIIII/( ym ran snares WILLIAM H. LEE, OF SYRACUSE, NEW YORK, ASSIGNOR TO SYRACUSE CHILLED PLOW COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

SLAT-MOLDIBOARD.

Specification of Letters Patent.

Patented Apr. 24, 1917.

Application filed October 28, 1914. Serial N 0. 869,048.

To all whom it may concern:

Be it known that I, VVJLLIAM H. LEE, a citizen of the United States, residing at Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Slat-Moldboard, of which the following is a specification.

This invention relates to slat mold boards and has for its object a construction by which an earth turning surface at the front of the mold board and the slats are formed integral or of one piece of metal; and it consists in the novel features of construction hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings, in which like characters designate corresponding parts in all the views.

Figure 1 is a perspective view of the earth turning element of a plow embodying my invention, the frog being illustrated in dotted lines and the contiguous portions of one of the handles being also shown.

Fig. 2 is a rear elevation of the mold board.

Fig. 3 is an elevation similar to Fig. 1 showing a plow embodying my invention in which the mold board and shin piece are one piece.

Fig. 4 is a sectional View taken on the plane of line AA, Fig. 1 showing the attachment of one of the handles to the mold board.

Heretofore, slat mold boards have been composed of a body and slatsbolte'd, riveted or otherwise secured to the body. By my invention, the mold board is formed of a single cast plate having its surface hardened or chilled and having its slats firmly supported and braced and arranged to conform to the travel of the soil over the mold board.

1 designates the mold board, 2 the share, and 8 the shin piece of a plow. The mold board 1 is a plate the face of which is hardened by chilling or in any other suitable manner. In casting the mold board, it is formed with a plurality of upwardly and rearwardly extending slots 4 opening through the inner and outer faces and the top edge of the mold board, which slots provide the mold board with a plurality of slats 5 integral with a body or intact earth turning portion 6 at the front of the mold board.

The slots and slats extend lengthwise of the mold board with respect to the travel of the soil over the face of the mold board so that the soil does not move across the slots and scrape against the edges of the slats, but does move lengthwise of the slots and the slats. Hence, the soil engages the mold board with minimum friction. Preferably, the slots and the slats are curved to conform to the travel of the soil.

7 are braces located on the rear face of the mold board near the top edge thereof, these braces being integral with the mold board and the slats thereof and preferably of the same texture as the softer unhar'dened portions of the mold board. The faces of the braces 7 which extend across the slots 4, are cut out or are concave so as not to interfere with the movement of the soil, and as here shown said braces are arc shape and their ends join on the slats on opposite sides of the slots.

8 are integral reinforcing ribs formedon the rear face of the mold board 1 and extending lengthwise of the slats 5 and along the slots 4, the ribs joining at their outer ends the bases of the arched braces 7 and curving at 9 around the lower ends of the slots and joining at said lower ends an integral reinforcing rib 10 extending along the lower ends of the slots. The end slots are shorter than the remaining slots and the shorter slot located on the top of the mold board is unprovided with a rib along the upper side thereof, and the rib 10 skirts the lower edge of the mold board and along the lowermost slot 4.

As seen in Fig. 1, the shin piece 3 is here shown as a separate piece, but if it is desirable to have the slots 4 extend farther into the body of the mold board than as shown in order to further reduce the friction, the shin piece and mold board may be formed of one piece as shown in Fig. 3.

The mold board is formed'with suitable holes 11, 12 for receiving rivets or bolts by means of which the mold board is secured to the frog 13, and to one of the handles 14.

This mold board is particularly advantageous in that it is stronger and more economical in manufacture, compared with the old type of slat mold board made up of a number of pieces, and owing to the direction of its slats, is more efficient in use.

What I claim is 1. A mold board provided at its front part 1 0 with an earth-turning portion and at the rear of said portion with a plurality of rearwardly extending slats formed integral with said earth-turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the slats forming rearward continuations of spaced apart portions of the outer surface of said earth-turning por tion, substantially as and for the purpose set forth.

2. A mold board provided at its front part with an earth-turning portion and at the rear of said portion with integral top and bottom rearward extensions of said portion having opposing edges substantially equidistant from each other and with a plurality of substantially equidistant rearwardly extending slats arranged between the top and bottom extensions and formed integral with said earth turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the top and bottom extensions and the slats forming rearward continuations of spaced apart portions of the outer suriace of said earth-turning portion, substantially as and for the purpose set forth.

8. A mold board provided at its front part with an earth-turning portion and at the rear of said portion with a plurality of rearwardly extending slats formed integral with said earth-turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board and through the top edge of the outer surface of the mold board, the outer faces of the slats forming rearward continuations of spaced apart portions of the outer surface of said earth-tur ing portion, substantially as and for the purpose described. 7

a. A mold board provided at its front part with an earth-turning portion and at the rear of said portion with a plurality of rearwardly extending slats formed integral with said earth-turning portion and with a. plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the slats forming rearward continuations'of spaced apart portions of the outer surface of said eartlrturning portion, the mold board being also provided on its inner face with braces spaced apart from the front ends of the slats and joining said slats, substantially as and for the purpose set forth.

5. A single piece mold board formed with a plurality of slots opening through its inner and outer faces and its top edge, the portions of the mold board bet veen the slots constituting slats integral with the body of wardly extending slats formed integral with said earth-turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the slats forming rearward continuations of spaced apart portions of the outer surface of said earth-turning portion, the mold board bein also provided on its inner face with braces spaced apart from the front ends of the slats and joining said slats, the outer faces of the portions of the braces between the slats being formed concave, substantially as and for the purpose described.

7. A mold board provided at its front part with an earth-turning portion and at the rear of said portion with a plurality of rearwardly extending slats formed integral with said earth-turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the slats forming rearward continuations of spaced apart portions of the outer surface of said earthaturning portion, the mold board being also provided with ribs extending lengthwise of the inner faces of the slats, substantially as and for the purpose set forth. e

S. A mold board provided at'its front part with an earth-turning portion and at the rear of said portion with a plurality of rearwardly extending slats formed integral with said earth-turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the slats forming rearward continuations of spaced apart portions of the outer surface of said eartlnturning portion, the mold board being also provided with ribs extending lengthwise of the inner faces of the slats and also extending around the lower ends of the slots, substantially as and for the purpose described.

9. A mold board provided at its front part with an earth-turning portion and at the rear of said'portion with a plurality of rear-' wardly extending slats formed integral with said earth-turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the slats forming rearward continuations of spaced apart portions of the outer surface of said earth-turning portion, the mold board being also provided with ribs extending lengthwise of the inner faces of the slats and with an additional rib arranged on the inner face of the mold board at an angle to the slats in proximity to their front ends and joined to said lengthwise ribs, substantially as and for the purpose set forth.

10. A mold board provided at its front part with an earth-turning portion and at the rear of said portion with a plurality of rearwardly extending slats formed integral with said earth-turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the slats forming rearward continuations of spaced apart portions of the outer surface of said earth-turning portion, the mold board being also provided on its inner face with braces spaced apart from the front ends of the slats and joining said slats, and with ribs extending lengthwise of the inner faces of the slats and joined to the braces, substantially as and for the purpose set forth.

11. A mold board provided at its front part with an earth-turning portion and at the rear of said portion with a plurality of rearwardly extending slats formed integral with said earth-turning portion and with a plurality of lengthwise slots alternating with the slats and extending through the inner and outer surfaces of the mold board, the outer faces of the slats forming rearward continuations of spaced apart portions of the outer surface of said earth-turning portion, the mold board being also provided on its inner face with braces spaced apart from the front ends of the slats and oining said slats, and with ribs extending lengthwise of the inner faces of the slats and joined at their upper ends to the braces and with an additional rib arranged on the inner face of the mold board at an angle to the slots in proximity to their front ends and joined to the lower ends of said length-wise ribs, substantially as and for the purpose described.

Intestimony whereof, I have hereunto signed my name in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 21st day of September, 3.914.

WILLIAM H. LEE.

Witnesses:

L. F. TIFFT, G. H. WARWICK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

